Isometric exercise apparatus



FIG. 1 is the perspective view of an isometric exercise apparatus;

FIG. 2 is a back view of the isometric exercise apparatus of FIG. 1;

FIG. 3 is a front view of the isometric exercise apparatus of FIG. 1;

FIG. 4 is a right side elevation view of the isometric exercise apparatus of FIG. 1, wherein the left side view is a mirror image thereof;

FIG. 5 is a top view of the isometric exercise apparatus of FIG. 1; and,

FIG. 6 is a bottom view of the isometric exercise apparatus of FIG. 1. 

The ornamental design for an isometric exercise apparatus, as shown. 